has served as professor and chair of the Department of Sociology and as vice president of Syracuse University. / Since 1974, he has been a faculty member of Harvard University's Graduate School of Education. A former president of Eastern Sociological Society, he has been a member of the Council of the American Sociological Association and of the Board of Directors of the Social Science Research Council.

has served as professor and chair of the Department of Sociology and as vice president of Syracuse University. / Since 1974, he has been a faculty member of Harvard University's Graduate School of Education. A former president of Eastern Sociological Society, he has been a member of the Council of the American Sociological Association and of the Board of Directors of the Social Science Research Council.